Supercharge Your Innovation With Domain-Expert AI Agents!

Method for producing alkylglycidyl ether

A technology of glycidyl ether and a manufacturing method, which is applied in chemical instruments and methods, electrolysis process, organic chemistry and other directions, can solve the problems of by-produced metal salts, a large amount of water resources, etc., so as to reduce the generation of waste water and effectively utilize water resources. Effect

Active Publication Date: 2013-03-13
KAO CORP
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when the ring-closing reaction is performed using an alkaline agent, a large amount of metal salts obtained from the alkaline agent are produced by-product
Therefore, for the purpose of removing these metal salts, etc., it is necessary to perform a treatment process such as washing with water, which not only requires a large amount of water resources, but also produces waste water containing metal salts and organic substances, and therefore seeks to solve the problem.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing alkylglycidyl ether
  • Method for producing alkylglycidyl ether
  • Method for producing alkylglycidyl ether

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] To 60.0 g of the composition (A1), 12.0 g of sodium chloride and 528.0 g of ion-exchanged water were added to obtain a chlorohydrin ether-containing composition (A) (containing 42.6 g of chlorohydrin ether).

[0117] Step 1: 10 sheets of anion exchange membranes (AHA manufactured by ASTOM Corporation, effective area 55 cm) 2 ), 11 bipolar membranes (BP-1E manufactured by ASTOM Corporation, effective area 55cm 2 )according to figure 2 Composition (A) containing chlorohydrin ethers in zone 1 of the alternately arranged electrodialysis apparatus (Model EX3B manufactured by ASTOM Corporation), or in zone 2, will consist of 10.0 g of sodium chloride and 490.0 g of ion exchanged The electrolyte aqueous solution composed of water was circulated with a pump under stirring, and the voltage between the cathode and the anode was kept constant at 30V, while a direct current was applied, and the electrodialysis reaction was carried out for 2 hours. The cumulative current flowing ...

Embodiment 2

[0121] In addition to adding 12.0 g of sodium chloride and 438.0 g of ion-exchanged water to 150.0 g of composition (A1) to obtain a chlorohydrin ether-containing composition (A) (containing 106.5 g of chlorohydrin ether), and in step 1, The composition (A) containing the chlorohydrin ether was circulated in the area 1 of the electrodialysis apparatus with a pump under stirring, and the electrodialysis reaction was carried out in the same manner as in Example 1 for 2 hours. The cumulative current flowing is 12.0Ah, and the average current density is 1000A / m 2 , the liquid temperature in zone 1 is in the range of 15 to 40 °C.

[0122] After the reaction, 332.8 g of composition (B) were obtained in zone 1 . Component analysis of the composition (B) by gas chromatography revealed that 49.7 g of the chlorohydrin ether of the chlorohydrin ether-containing composition (A) was converted to 2-ethylhexyl glycidyl ether without using an alkali agent. Conversion reactions can be carrie...

Embodiment 3

[0125] In addition to adding 12.0 g of sodium chloride and 378.0 g of ion-exchanged water to 210.0 g of composition (A1) to obtain a chlorohydrin ether-containing composition (A) (containing 149.1 g of chlorohydrin ether), and in step 1, The composition (A) containing the chlorohydrin ether was circulated in the area 1 of the electrodialysis apparatus with a pump under stirring, and the electrodialysis reaction was carried out in the same manner as in Example 1 for 2 hours. The cumulative current of the pass is 12.0Ah, and the average current density is 1000A / m 2 , the liquid temperature in zone 1 is in the range of 15 to 40 °C.

[0126] After the reaction, 319.8 g of composition (B) were obtained in zone 1 . Component analysis of the composition (B) by gas chromatography revealed that 54.8 g of the chlorohydrin ether of the chlorohydrin ether-containing composition (A) was converted to 2-ethylhexyl glycidyl ether without using an alkali agent. Conversion reactions can be ca...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Disclosed is a method for producing an alkylglycidyl ether, wherein a composition (A), which is composed of a heterogeneous phase system (oil phase / water phase), has a chlorohydrin ether concentration of 5% by weight or more, and contains water and an electrolyte, is introduced into an electrodialyzer that has a bipolar membrane and an electric current is applied thereto, so that a chlorohydrin ether contained in the composition (A) is converted into an alkylglycidyl ether by the action of OH- that is generated by the bipolar membrane, while separating and recovering by-produced Cl- in the form of HCl (hydrochloric acid) at the same time.

Description

technical field [0001] The present invention relates to a method for producing an alkyl glycidyl ether, and more specifically, to a method for producing an alkyl glycidyl ether using an electrodialysis apparatus having a bipolar membrane. Background technique [0002] Conventionally, alkyl glycidyl ether was obtained by reacting alcohol and epichlorohydrin in the presence of an acid catalyst to obtain a chlorohydrin ether compound, and then using chlorohydrin ether and an alkali agent (calcium hydroxide, etc.) or more in accordance with It can be produced by subjecting it to a ring-closure reaction as shown in the following reaction formula. [0003] [0004] (In the formula, R represents the residue after removing one hydroxyl group from the raw alcohol.) [0005] However, when the ring-closure reaction is carried out using an alkaline agent, a large amount of metal salts obtained from the alkaline agent is by-produced. Therefore, in order to remove these metal salts a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C25B3/00C07D301/26C07D303/22
CPCC07D301/26C07D303/22B01D61/445
Inventor 中井武史白泽武
Owner KAO CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com